Spraying mechanism on Dacromet production line
By designing a spraying mechanism with multi-angle rotating atomization spray head on the Darkro production line, the problem of spraying blind spots in traditional spraying mechanisms is solved, and the finished product quality of the workpiece and the coating coverage stability are significantly improved.
Patent Information
- Application Number
- CN202421360111.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-14
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-06-14
AI Technical Summary
The spraying mechanism on the traditional Darkro production line is prone to spray blind spots during the spraying process, resulting in poor finished product effect after spraying the workpiece.
A spraying mechanism including a servo motor, a transmission screw, a longitudinally shifted block, a nut pair, an atomized spray head and an electromagnetic control valve is designed. By setting up a disk body, a double-headed cam, a transverse slide bar and a stepper motor, the multi-angle rotation of the atomized spray head is realized to ensure that the paint can fully cover the surface of the workpiece.
It effectively reduces the occurrence of spray blind spots during workpiece spraying, improves the finished product quality of the workpiece Darkro surface treatment and the stability of coating coverage after spraying.
Smart Images
Figure CN222753597U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of surface treatment equipment, in particular to a spraying mechanism on a Dacromet production line. Background Art
[0002] "Dacromet" is the best technology to replace the traditional electrogalvanizing and hot-dip galvanizing that seriously pollute the environment. It can not only process steel, iron, aluminum and their alloys, cast iron parts, structural parts, but also sintered metals and special surface treatments. It is widely used in automobiles, motorcycles, transportation facilities, household appliances and other industries. It not only improves product quality, but also protects the natural ecological environment, and is deeply welcomed by the engineering community and environmental protection departments.
[0003] like Figure 4 and Figure 5 As shown in the figure, it is a spraying mechanism of the previous generation installed on the Dacromet production line. Its main function is to spray the paint in atomized form onto the workpiece moving on the conveying mechanism, and perform anti-corrosion coating on the surface of the workpiece. However, the spraying mechanism of this structure has the following shortcomings in actual use: although the conveying mechanism can drive the workpiece to move along the X-axis direction under the spray box, and the servo motor drives the atomizing nozzle to reciprocate along the Y-axis direction to perform walking spraying on the surface of the workpiece, the spraying angle of the atomizing nozzle is fixed, which makes it difficult for the sprayed paint to fully cover the outer surface of the workpiece, resulting in the easy existence of spraying dead corners during the workpiece spraying process. Although the generation of spraying dead corners is currently reduced by reducing the transmission speed of the conveying mechanism, increasing the reciprocating cycle of the servo motor, or increasing the spraying flow rate of the atomizing nozzle, it will directly affect the processing efficiency and processing cost of the Dacromet production line.
[0004] In view of this, it is particularly important to design and manufacture a spraying mechanism that can quickly spray paint onto the surface of the workpiece and reduce the dead angle of the workpiece spraying, which is particularly important in the Dacromet production line. Utility Model Content
[0005] The purpose of the utility model is to solve the problem that a traditional spraying mechanism installed on a Dacromet production line is prone to dead angles in the spraying process, resulting in poor finished product effect after the workpiece is sprayed, and a spraying mechanism on a Dacromet production line is proposed.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A spraying mechanism on a Dacromet production line comprises a spray box, a servo motor installed above the rear end of the spray box, a transmission screw installed at the front end of the servo motor and passing through the spray box, a longitudinal movement block sleeved on the outside of the transmission screw, a nut pair installed in the middle of the longitudinal movement block and corresponding to the transmission screw, an atomizing nozzle arranged below the longitudinal movement block and an electromagnetic control valve installed on the atomizing nozzle, a disk body is installed at the lower end of the longitudinal movement block, two atomizing nozzles are provided, and the two atomizing nozzles are symmetrically rotated and installed at the left and right ends of the disk body through a torsion spring rotating shaft, and a driving mechanism is arranged between the upper end of the disk body and the two atomizing nozzles to drive the two atomizing nozzles to rotate synchronously inward or outward.
[0008] As a further description of the above technical solution:
[0009] The driving mechanism includes a double-headed cam rotatably mounted in the middle of the upper end of the disk body, a supporting slider symmetrically mounted on the inner side of the left and right ends of the disk body, a transmission slider fixed on the inner side of the atomizing nozzle and facing the supporting slider, a transverse slider movably mounted on the inner side of the supporting slider and located between the double-headed cam and the transmission slider, and a transmission part arranged between the disk body and the double-headed cam.
[0010] As a further description of the above technical solution:
[0011] The transmission part includes a stepper motor installed on the upper end of the disc body and penetrating downwardly through the disc body, a driving gear installed on the upper end of the stepper motor, and a driven gear sleeve fixed on the upper end of the double-headed cam and meshing with the driving gear.
[0012] As a further description of the above technical solution:
[0013] The lower end of the disc is provided with a heat drying part for accelerating the curing of the coating on the surface of the workpiece.
[0014] As a further description of the above technical solution:
[0015] The heat-drying part comprises two concave arc grooves symmetrically arranged at the lower end of the plate body and a heating lamp tube installed inside the two concave arc grooves and corresponding to the shape of the concave arc grooves.
[0016] As a further description of the above technical solution:
[0017] The left end, the right end and the lower end of the spray box are all open structures, and side panels are detachably installed on the outer sides of the left end and the right end of the spray box.
[0018] As a further description of the above technical solution:
[0019] Two guide columns which are distributed in parallel and penetrate the longitudinal movement block are fixedly connected between the front and rear ends of the spray box, and the longitudinal movement block is provided with through holes corresponding to the guide columns.
[0020] As a further description of the above technical solution:
[0021] The front and rear ends of the spray box are integrally and fixedly connected with a fixed rib plate bent outwards by 90 degrees, and two mounting waist holes are symmetrically provided on the fixed rib plate.
[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:
[0023] 1. In the utility model, the original spraying mechanism is scientifically and rationally improved, and a disc, a double-headed cam, a transverse sliding bar, a stepper motor, a torsion spring shaft and a transmission sliding bar are arranged between the longitudinal movement block and the atomizing nozzle. When the stepper motor on the disc is working, the double-headed cam can be driven to rotate through the driving gear and the driven gear sleeve. When the double-headed cam rotates, the transverse sliding bar can be driven to slide back and forth in the supporting slider, thereby driving the two atomizing nozzles to rotate synchronously outward or inward, and the paint is sprayed onto the workpiece in a multi-angle swing. This structure can swing the paint onto the outer surface of the workpiece in a multi-directional manner, reducing the generation of spraying dead angles during the workpiece spraying process, thereby improving the quality of the finished product of the workpiece Dacromet surface treatment and the stability of the coating coverage after spraying.
[0024] 2. In the utility model, an inner concave arc groove and a heating lamp are provided at the lower end of the disk. When the heating lamp is working, the untreated workpiece under the disk can be irradiated and heated, thereby increasing the surface temperature of the workpiece and facilitating the rapid adhesion of the paint to the outer surface of the workpiece. At the same time, the workpiece after spraying the paint can be heat-baked to accelerate the adhesion of the paint to the workpiece surface to form an anti-corrosion coating. This structure can irradiate and dry the workpiece before and after spraying, which can effectively accelerate the adhesion of the paint to the workpiece surface to form an anti-corrosion coating, thereby further improving the quality of the finished product of the Dacromet surface treatment of the workpiece and the stability of the coating coverage after spraying. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 This is a schematic structural diagram of a spraying mechanism on a Dacromet production line proposed by the utility model;
[0026] Figure 2 This is a schematic diagram of the structure of the disk body in the utility model;
[0027] Figure 3 It is a three-dimensional left bottom view schematic diagram of the spray box and the tray body after the middle side panel of the utility model is disassembled;
[0028] Figure 4 This is a schematic diagram of the structure of the spraying mechanism on the previous generation of Dacromet production line in the prior art Figure 1 ;
[0029] Figure 5This is a schematic diagram of the structure of the spraying mechanism on the previous generation of Dacromet production line in the prior art Figure 2 .
[0030] Legend:
[0031] 1. Spray box; 101. Side panel; 102. Guide column; 103. Fixed rib; 104. Mounting waist hole; 2. Servo motor; 201. Transmission screw; 3. Longitudinal block; 301. Nut pair; 4. Atomizing nozzle; 401. Solenoid control valve; 402. Torsion spring shaft; 403. Transmission slide; 5. Plate; 501. Support slide; 502. Transverse slide; 503. Concave arc groove; 504. Heating lamp; 6. Double-headed cam; 601. Driven gear sleeve; 7. Stepper motor; 701. Driving gear. DETAILED DESCRIPTION
[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0033] See also Figure 1-3 The utility model provides a technical solution: a spraying mechanism on a Dacromet production line, comprising a spraying box 1, a servo motor 2 installed above the rear end of the spraying box 1, a transmission screw 201 installed at the front end of the servo motor 2 and passing through the spraying box 1, a longitudinal movement block 3 sleeved on the outside of the transmission screw 201, a nut pair 301 installed in the middle of the longitudinal movement block 3 and corresponding to the transmission screw 201, an atomizing nozzle 4 arranged below the longitudinal movement block 3, and an electromagnetic control valve 401 installed on the atomizing nozzle 4 A disk body 5 is installed at the lower end of the longitudinal movement block 3, and two atomizing nozzles 4 are provided, and the two atomizing nozzles 4 are symmetrically rotatably installed at the left and right ends of the disk body 5 through a torsion spring shaft 402. A driving mechanism for driving the two atomizing nozzles 4 to rotate synchronously inward or outward is arranged between the upper end of the disk body 5 and the two atomizing nozzles 4. Under normal circumstances, the torsion spring shaft 402 can make the upper end of the atomizing nozzle 4 generate a torsional force in the direction of the disk body 5, so that the atomizing nozzle 4 can stably maintain a stable working posture.
[0034] Specifically, Figure 2 and Figure 3As shown, the driving mechanism includes a double-headed cam 6 rotatably installed in the middle of the upper end of the disk body 5, a supporting slide 501 symmetrically installed on the inner side of the left and right ends of the disk body 5, a transmission slide 403 fixed on the inner side of the atomizing nozzle 4 and facing the supporting slide 501, a transverse slide 502 movably installed on the inner side of the supporting slide 501 and located between the double-headed cam 6 and the transmission slide 403, and a transmission part arranged between the disk body 5 and the double-headed cam 6, wherein the arrangement of the transmission slide 403 can prevent the transverse slide 502 from directly contacting the outer surface of the atomizing nozzle 4, and at the same time can stably contact the transverse slide 502, so that when the double-headed cam 6 drives the transverse slide 502 to reciprocate laterally on the supporting slide 501, the atomizing nozzle 4 can be forced to swing back and forth.
[0035] Among them, the transmission part includes a stepper motor 7 installed on the upper end of the disk body 5 and penetrating the disk body 5 downward, a driving gear 701 installed on the upper end of the stepper motor 7, and a driven gear sleeve 601 fixed on the upper end of the double-headed cam 6 and meshing with the driving gear 701. When the stepper motor 7 is working, it can drive the double-headed cam 6 to rotate at a uniform speed through the driving gear 701 and the driven gear sleeve 601.
[0036] Specifically, Figure 3 As shown, a heat drying section for accelerating the curing of the paint on the workpiece surface is provided at the lower end of the disk body 5, and the heat drying section includes two concave arc grooves 503 symmetrically arranged at the lower end of the disk body 5 and a heating lamp tube 504 installed on the inner side of the two concave arc grooves 503 and corresponding to the shape of the concave arc grooves 503. The heating lamp tube 504 can generate heat light when energized. When the heat light is irradiated to the cleaned workpiece surface, the temperature of the workpiece surface can be increased, which facilitates the adhesion of the paint to the workpiece surface. At the same time, the heat light can dry the workpiece after spraying the paint, thereby accelerating the formation of the anti-corrosion coating on the workpiece surface.
[0037] Specifically, Figure 1-3 As shown, the left end, right end and lower end of the spray box 1 are all open structures, and the side panels 101 are detachably installed on the outer sides of the left and right ends of the spray box 1 to prevent the sprayed paint from spraying to the outside of the spray box 1, avoiding pollution to the equipment and the environment. At the same time, during actual use, after the side panels 101 are removed at the ends of the spray box 1, the components installed inside the spray box 1 can be inspected and maintained.
[0038] Among them, two guide columns 102 distributed in parallel and passing through the longitudinal movement block 3 are fixedly connected between the front and rear ends of the spray box 1. A through hole corresponding to the guide column 102 is opened on the longitudinal movement block 3. The setting of the guide column 102 and the through hole can effectively prevent the deflection movement of the longitudinal movement block 3 when the transmission screw 201 rotates, thereby improving the stability of the longitudinal sliding movement of the longitudinal movement block 3.
[0039] At the same time, the front and rear ends of the spray box 1 are integrally fixedly connected with a fixed rib 103 bent outward by 90°, and two mounting waist holes 104 are symmetrically provided on the fixed rib 103. The setting of the fixed rib 103 and the mounting waist holes 104 facilitates the installation and fixing operation of the spray box 1 by fasteners.
[0040] Working principle: When in use, before the preparation work, the spray box 1 can be installed and fixed between the spraying station and the conveying mechanism of the Dacromet production line through fasteners and fixed ribs 103, and the control circuits of the servo motor 2, the electromagnetic control valve 401, the heating lamp 504 and the stepper motor 7 are connected to the control terminal of the Dacromet production line. The paint conveying pipeline of the Dacromet production line is connected to the electromagnetic control valve 401 by liquid circuit. During the actual spraying process, the cleaned workpiece can be conveyed to the inner side of the spray box 1 along the X-axis direction through the conveying mechanism. At the same time, the servo motor 2 can reciprocate in the forward or reverse direction for a set number of circles. Under the spiral transmission action between the transmission screw 201 and the nut pair 301, the longitudinal movement block 3 as a whole can reciprocate along the Y-axis on the spray box 1. When the electromagnetic control valve 401 is opened When the paint is started, the paint in the conveying pipeline can enter the atomizing nozzle 4, and the paint is evenly sprayed onto the workpiece in the spray box 1 in an atomized form. During this process, the stepping motor 7 can drive the driving gear 701 to rotate. Under the meshing transmission action between the driving gear 701 and the driven gear sleeve 601, the double-headed cam 6 can rotate at a uniform speed on the disk body 5. During the rotation of the double-headed cam 6, under the action of the torsional force of the torsion spring shaft 402 and the reciprocating lateral sliding of the transverse slide bar 502 in the supporting slide buckle 501, the two atomizing nozzles 4 can synchronously reciprocate inward or outward on the left and right ends of the disk body 5, thereby driving the atomizing nozzle 4 to perform multi-angle rotation adjustment, and the sprayed paint is evenly swung and sprayed onto the workpiece in multiple directions, thereby reducing the generation of spraying dead angles during the paint spraying process.
[0041] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A spraying mechanism on a Dacromet production line, comprising a spray box (1), a servo motor (2) installed above the rear end of the spray box (1), a transmission screw (201) installed at the front end of the servo motor (2) and penetrating the spray box (1), a longitudinal movement block (3) sleeved on the outside of the transmission screw (201), a nut pair (301) installed in the middle of the longitudinal movement block (3) and corresponding to the transmission screw (201), an atomizing nozzle (4) arranged below the longitudinal movement block (3) and an electromagnetic control valve (401) installed on the atomizing nozzle (4), characterized in that: A disc (5) is mounted at the lower end of the longitudinal movement block (3), two atomizing nozzles (4) are provided, and the two atomizing nozzles (4) are symmetrically mounted on the left and right ends of the disc (5) via a torsion spring rotating shaft (402), and a driving mechanism is provided between the upper end of the disc (5) and the two atomizing nozzles (4) for driving the two atomizing nozzles (4) to rotate synchronously inward or outward.
2. The spraying mechanism on the Dacromet production line according to claim 1 is characterized in that: The driving mechanism comprises a double-headed cam (6) rotatably mounted on the middle part of the upper end of the disk body (5), a supporting slide buckle (501) symmetrically mounted on the inner sides of the left and right ends of the disk body (5), a transmission slide bar (403) fixed on the inner side of the atomizing nozzle (4) and facing the supporting slide buckle (501), a transverse sliding bar (502) movably mounted on the inner side of the supporting slide buckle (501) and located between the double-headed cam (6) and the transmission slide bar (403), and a transmission part arranged between the disk body (5) and the double-headed cam (6).
3. The spraying mechanism on the Dacromet production line according to claim 2 is characterized in that: The transmission part comprises a stepper motor (7) mounted on the upper end of the disc body (5) and penetrating downwardly through the disc body (5), a driving gear (701) mounted on the upper end of the stepper motor (7), and a driven gear sleeve (601) fixed on the upper end of the double-headed cam (6) and meshing with the driving gear (701).
4. The spraying mechanism on the Dacromet production line according to claim 1 is characterized in that: The lower end of the disc (5) is provided with a heat drying portion for accelerating the curing of the coating on the surface of the workpiece.
5. The spraying mechanism on the Dacromet production line according to claim 4 is characterized in that: The heat drying section comprises two inwardly concave arc grooves (503) symmetrically arranged at the lower end of the disc body (5) and a heating lamp tube (504) installed inside the two inwardly concave arc grooves (503) and corresponding in shape to the inwardly concave arc grooves (503).
6. The spraying mechanism on the Dacromet production line according to claim 1 is characterized in that: The left end, the right end and the lower end of the spray box (1) are all open structures, and side panels (101) are detachably mounted on the outer sides of the left end and the right end of the spray box (1).
7. The spraying mechanism on the Dacromet production line according to claim 1 is characterized in that: Two guide columns (102) are fixedly connected between the front and rear ends of the spray box (1) and are distributed in parallel and penetrate the longitudinal movement block (3). The longitudinal movement block (3) is provided with through holes corresponding to the guide columns (102).
8. The spraying mechanism on the Dacromet production line according to claim 1 is characterized in that: The front and rear ends of the spray box (1) are integrally fixedly connected with a fixed rib plate (103) bent outwards by 90 degrees, and two mounting waist holes (104) are symmetrically provided on the fixed rib plate (103).